EP 0453464 B1 19951011 - CONTROL VALVE FOR A FAUCET AND USE OF ULTRASONIC MOTOR.
Title (en)
CONTROL VALVE FOR A FAUCET AND USE OF ULTRASONIC MOTOR.
Title (de)
REGELUNGSVENTIL FÜR LEITUNG UND VERWENDUNG BEI EINEM ULTRASCHALLMOTOR.
Title (fr)
CLAPET DE COMMANDE POUR UNE CONDUITE ET UTILISATION D'UN MOTEUR ULTRASONIQUE.
Publication
Application
Priority
- FI 9000009 W 19900110
- FI 893764 A 19890809
- FI 890138 A 19890111
Abstract (en)
[origin: US5411241A] PCT No. PCT/FI90/00009 Sec. 371 Date Aug. 23, 1991 Sec. 102(e) Date Aug. 23, 1991 PCT Filed Jan. 10, 1990 PCT Pub. No. WO90/08283 PCT Pub. Date Jul. 26, 1990.The invention relates to a motor-driven control valve for a liquid, in which a control member (31) effects a rotatory and/or linear motion. In order to achieve an improved torsion moment and controllability, the motion of the control member is produced by means of an ultrasonic motor. In one embodiment, the rotating plate acting as a control member (31) forms directly a mobile part of the ultrasonic motor. An oscillating body (36) is in contact with this part, the oscillations of the body being produced by piezoelectric elements (37). The oscillating body (36) with the piezoelectric elements (37) can be annular, thus surrounding e.g. the material flowing in the pipe. Owing to the invention, a compact and simple solution is provided, and the actuating of the plate does not require as many transmission elements as when usual electric motors are being used.
IPC 1-7
IPC 8 full level
E03C 1/05 (2006.01); E03C 1/08 (2006.01); F16K 31/02 (2006.01); F16K 31/04 (2006.01); G05D 23/13 (2006.01); H02N 2/00 (2006.01)
CPC (source: EP US)
E03C 1/08 (2013.01 - EP US); F16K 31/02 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB IT LI LU NL SE
DOCDB simple family (publication)
US 5411241 A 19950502; AT E129056 T1 19951015; AU 4833490 A 19900813; DE 69022977 D1 19951116; DE 69022977 T2 19960314; DK 0453464 T3 19951204; EP 0453464 A1 19911030; EP 0453464 B1 19951011; ES 2080822 T3 19960216; JP H04502662 A 19920514; NO 178354 B 19951127; NO 178354 C 19960306; NO 912714 D0 19910710; NO 912714 L 19910909; WO 9008283 A1 19900726
DOCDB simple family (application)
US 68986891 A 19910823; AT 90901606 T 19900110; AU 4833490 A 19900110; DE 69022977 T 19900110; DK 90901606 T 19900110; EP 90901606 A 19900110; ES 90901606 T 19900110; FI 9000009 W 19900110; JP 50174290 A 19900110; NO 912714 A 19910710